class Solution2 {
    public int findPoisonedDuration(int[] timeSeries, int duration) {
        int ret = 0;
        for(int i = 1; i < timeSeries.length; i++) {
            if(timeSeries[i] - timeSeries[i-1] >= duration) {
                ret += duration;
            }else {
                ret += timeSeries[i] - timeSeries[i-1];
            }
        }
        return ret+duration;

    }
}